Graham-Patten SoundPals ADC-24, Руководство пользователя

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ADC-24
ADC-24 User Guide
Page 3
About the ADC-24
The SoundPals ADC-24 is a stereo 24-bit, analog-to-digital AES converter. The unit takes two
line-level analog inputs (on XLR connectors), and converts them to one digital AES output
(provided on both XLR and BNC connectors simultaneously).
The ADC-24 offers the following features:
•
24-bit A/D converter
•
Adjustable level for each input
(-10 to +4 dBu at -20 dBFS)
•
AES reference input
•
Significant status bits selectable with internal dipswitch
•
Active balanced and unbalanced outputs
•
LED level indicators for normal and overload conditions
•
Optional rack mounting tray (1 RU)
•
Compact size, rugged construction
Two versions of the ADC-24 are available:
•
44.1 kHz Model
This model defaults to 44.1 kHz, via the internal crystal. However, if an external
reference is applied to the
AES REF connector, the output frequency will lock to the
reference.
•
48 kHz Model
This model defaults to 48 kHz, via the internal crystal. However, if an external reference
is applied to the
AES REF connector, the output frequency will lock to the reference.
NOTE
The printed legend on the rear panel indicates the default frequency.
The figure below illustrates the ADC-24’s front panel:
ADC-24 ADC-24
AES OUT
+6V
-60
-20
-3
0
L R
LEVEL
EXT
REF
6 5
3 4 7 1
L R
2
GAIN
1) Left Analog Input Gain Trim — L GAIN sets the left channel’s analog input level (the
level that you want to correspond to -20dB below digital clipping).
2) Right Analog Input Gain Trim — R GAIN sets the right channel’s analog input level (the
level that you want to correspond to -20dB below digital clipping).
3) AES Unbalanced Output — provides AES unbalanced output (BNC). Output is
concurrent with the rear panel’s AES balanced output (XLR) — both can be used
simultaneously.